Display device



. Feb. 16, 1937. E. D. THdMPsol l- 2,071,288

DISPLAY DEVICE Filed Nov; 7, 1934. 2 Sheets-Sheet 1 27 LUBRICATION LLPOINT- SELECTOR IHHIIHIHI Illlllll IlllIIIHHHIIHIIIIIHIIII[Hllllllllllll llllllllll Illllllllllllfl I23456L89|0ll S'STEERING KEYTO SELECTOR l 2 2 G-CLUTCHES 9mm. lo-cou'ro.

||- WHEEL) BEARINGS I IO'UNIVEKSAL JOINTS 9m mm I In Venior Feb. 16,1937. E. D. THOMPSON DISPLAY DEVICE 2 Sheets-Sheet 2 Filed NOV. 7, 19345 lnvenior I I w? 7 II ZURQQQ.

Patented Feb. 16, 1937 UNITED STATES PATENT OFFICE DISPLAY DEVICE wareApplication November 7, 1934, Serial No. 751,803

2 Claims.

This invention relates to a display device for readily and quicklyexhibiting a particular group of data or indicia from a number of suchgroups and more particularly relates to a lubrication 5 and servicingdata indicator in which groups of essential data and instructions areimprinted upon an endless web or belt which may be moved past a slot orwindow so that the particular group desired may be observed andcorrelated with supplementary data on the face of the device.

Heretofore, in accumulating and presenting data for the properlubrication and servicing of a complicated mechanism, such as anautomobile, such data have either been printed on large charts of thealignment type, or upon separate smaller cards or sheets which are boundinto a book, strung upon wires or loops of cord, or otherwise assembledinto one location for use. 20 The large charts are not convenientbecause of the difficulty in quickly picking out the desired data fromthe large number of groups of figures, names, instructions and the like,thereon. Furthermore when they are in the smaller book or loose-leafform, so that the user must handle them, the single pages quickly becomesoiled and illegible from the grease and dirt that unavoidably accompanysuch servicing or lubricating operations. It is an object of thisinvention toprovide a means for conveniently and legibly displaying oneparticular group of data or indicia from a large number of the same, tocorrelate them with a supplementary group, and in such a manner that thewhole will be protected from becoming soiled or defaced by the operator,by the operations performed or by the weather.

Another object is to provide a means of the type described which may beeasily changed from one group or class of indicia to another, withouthandling or damaging the charts or surfaces carrying them.

Another object is to provide a display device in which the stationarychart as well as the movable element, each of which carriescomplementary parts of the data, are easily installed and removed foradditions or alterations, and in which the said moving element is heldin a secure and readable position with regard to the face of the device.

Another object is to provide a master chart or sheet bearinglubrication, identification, or servicing data on its face, and arelatively movable element bearing supplementary data, as for a giventype or make of automobile, which latter element may be aligned orcorrelated with the master sheet in such a manner that the essentialdata desired, and none other, are readily observable.

These and other objects and advantages will be more fully apparent fromthe following description and from the accompanying drawings, which forma part of this specification and illustrate a preferred embodiment ofthis invention.

In the drawings:

Figure 1 is a front elevation view of a display device, showing thedriving and idler roller and the web in place thereon, and illustratingthe general type of indicia that may be placed on the cooperating parts.

Figure 2 is a vertical sectional view on line IIII of Figure 1.

Figure 3 is an end View of a preferred construction of a driving roller.

Figure 4 is a side view of a preferred construction of an idler andstretching roller.

Figure 5 is a view on line V-V of Figure l and shows a means forretaining the guide bar for the web. Y

Referring to the drawings and particularly to Figure 1, the numeral Irepresents a box or frame, which may be of light sheet metal, providedwith brackets H for support on a wall or other flat surface. The frontedge !2 of box It] is preferably flanged as shown in Figure 1, and alsoprovided withmeans forming a groove or channel 13 (Figure 2) so that aflat sheet or card M can be inserted to form a removable front closurefor the box as well as a chart for data.

Sheet 54 is imprinted with data or indicia forming a chart generallydesignated l and relating to the purpose for which the device isdesigned, for example, the exhibition of data on lubrication orservicing of automobiles. A particular provision of this invention isthe means for correlating and aligning these data with correspondingdata on a separate movable element, such as an endless belt, tobe-described below, to give a predetermined relation as between thelubricating indicia, the locations in which particular lubricants are tobe used; and the various makes, models and types of automotive equipmentto which they may be applicable. In this example, to facilitate thefunction just outlined, there is provided a window or slot I6 extendingtransversely of sheet M, as shown in Figures 1 and 2. Slot It may becovered by a narrow transparent sheet ll of celluloid, glass, or thelike, to prevent entrance of moisture or dirt, or the whole front of boxIn may be protected by a single large sheet of such material.

Immediately behind slot I6 is a guide or spacing bar I8, which ispreferably hinged as at 9 to one side of box I, so that it may be swungout of the way when the web, to be described below, is to be removed orinstalled. The free end of bar I8 is preferably retained in clip on theopposite side of box II] when the bar is in its normal position (Figures1 and 5). If desired, the hinge l9 could be replaced by a second clipsimilar to 20, without departing materially from the invention or thearrangement illustrated.

A driving roller generally designated 2| is mounted at the upper end ofbox l0 and serves to support and control the endless belt or web 22 onwhich certain of the indicia or data to be exhibited and aligned areimprinted. Roller 2| may conveniently be made of a wooden or fibrecylinder 23, fitted with a flange 24 at each end, to prevent the web 22from becoming misaligned. A rod 25 is axially fixed to one end of thecylinder 23, extends outwardly through a suitable hole in the side ofbox l0, and is bent as at 26 to form a crank or handle. A simple knob ordisc could be substituted for crank 26 if desired. Sleeve 21, which maybe a short length of pipe, serves to space the cylinder 23 and crank 26with regard to the side of box ID, as shown in Figure 3.

At the opposite end of cylinder 23 is an axial rod 28, slidably fittedin bore 29 and urged outwardly as by spring 30. The outer end of rod 28passes through a suitable hole in the side of box In, and is fitted witha shoulder 3|, which bears against the side wall and serves to space andalign the roller 2| in the box H3. The friction at this point alsoserves to prevent undesired rotation of the roller 2| and consequentmovement of the web 22, so that the indicia which are aligned with slotl5 will remain in the position to which they are adjusted.

Web 22 may be an endless belt, such as paper, or paper backed withcloth, and is imprinted with the desired indicia 32 to be aligned withslot l6, and data l5 as shown in Figure l. The lower end or bight of web22 is preferably retained or guided and held taut by an idler roller 33.That roller may conveniently be made of a wooden cy1- inder 34, with twoend flanges 35, and is provided with two axial pins 36, which latter maybe received in guide slots or channels 31, at the sides of box I0. Theweb 22 is spaced from the slot M5 by guide bar I8, which thus liesbetween the front and back turns of the web, and prevents the web fromcurling or buckling away from the slot, so that its visibility andalignment are not impaired.

In operation, crank 26 is rotated by the operator, thus turning roller2| and moving the endless web 22 until the desired indicia, as 32 arevisible through slot 5 in sheet l4. That data may then be observed inrelation to the indicia IS, the operator thus receiving the informationdesired. To remove the web 22, the sheet M is first removed, as bydropping it downwardly from its normal position in groove l3. Guide bari8 is lifted from its retaining clip 20, thus permitting the rear turnof the endless web 22 to be withdrawn forwardly from the box l0,together with idler roller 33, after the latters removal from channels31. Rod 28 is pressed inwardly against spring until it is free from itshole in box H), whereupon the roller 2| and/or web 22 may be withdrawnforwardly from the box IE.

It will be appreciated that with the disclosed elements of a masterchart on which are grouped or spaced indicia relating to points oflubrication and the types and grades of lubricants to be used therein,combined with a movable element, such as the endless belt or web, onwhich are supplementary data as to types, models and years of thevarious automotive equipment which are to be serviced, with keys orsymbols relating to the data on'the master chart, and with means forconveniently aligning and correlating the web with the chart so that thedesired data and none other, may be placed in predetermined relationshipand be readily observable, and yet shielded and protected from dirt fromhandling or the weather, this invention represents a considerableimprovement and advance over the known art in this field.

Although a specific construction embodying this invention has beendescribed and illustrated, it is to be understood that the invention isnot limited to that specific device, and all such modifications andchanges as come within the scope of the appended claims are embracedthereby.

I claim: 1. A lubrication indicator comprising a frame, means on theface of said frame forming a chart having an exposed surface forreceiving grouped I indicia representing parts of equipment to belubricated, a slot in said chart, an endless web removably positionedbehind said chart so that a designated portion thereof is visiblethrough said slot, a driving roller for said web removably 51 positionedin said frame, means on said roller extending outside of said frame forrotating said roller, an idler roller for holding said web tautremovably positioned in said frame, removable means in said frame forholding said web close to said slot, said web having designating indiciaand lubricating indicia adapted to be observed through said slot tocooperate with the grouped indicia on said chart in aligned relation ofchart and key to selectively exhibit predetermined relations betweensaid indicia.

2. A lubrication indicator comprising a frame, means on the face of saidframe forming a chart having an exposed surface for receiving groupedindicia representing parts of equipment to be lubricated, a slot in saidchart, an endless web removably positioned behind said chart so that adesignated portion thereof is visible through said slot, a drivingroller for said web removably positioned in said frame, said rollercomprising a cylindrical member and a slidable pivot therefor, saidpivot adapted to project outwardly through said frame, and a springadapted to urge said pivot into engagement with said frame, means onsaid roller extending outside of said frame for rotating said roller, anidler roller for holding said Web taut removably positioned in saidframe, removable means in said frame for holding said web close to saidslot, said web having designating indicia and lubricating indiciaadapted to be observed through said slot to cooperate with the groupedindicia on said chart in aligned relation of chart and key toselectively exhibit predetermined relations between said indicia.

ERSKINE D. THOMPSON.

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